Hi, i have recived my new sheeva plug today and i have upgrade uboot to the last version but after do this the sheeva don't turn on it keeps with the green light turn on but i can't acces to it by serial or sy telnet or ssh and i don't know whats the problem the uboots seems to upgrade well , after upgrade i type reset and don't response more.

now i'm trying to recover it using sheeva installer but i give the error: unable to open ftdi device, i have check the vip and pid on the device manager but it don't solve the issue please anybody can help me